code: def get_layer_parents(adjList, lidx):
      """Returns parent layer indices for a given layer index."""
      return [e[0] for e in adjList if e[1] == lidx]
  
file_path: dragonfly/examples/nas/cg/cifar/cifar10_model.py
imports: from __future__ import division
  from __future__ import print_function
  import tensorflow
  from cifar10_model_base import ConvNet
label_desc: Use image node_id 1 for calling a global function with example usage: get_layer_parents(adjList, lidx) and returns: unknown